package edu.sctu.demo;

import javax.servlet.*;
import java.io.IOException;
import java.util.logging.Filter;

/**
 * Created by JAVA on 2018/6/14.
 */
public class DemoOneFilter implements javax.servlet.Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest,
                         ServletResponse servletResponse, FilterChain filterChain)
            throws IOException, ServletException {
        System.out.println("这是第一个过滤器！");
        //!!!一定要加上
        filterChain.doFilter(servletRequest,servletResponse);

    }

    @Override
    public void destroy() {

    }
}
